Gird up now thy loins like a man;
for I will demand of thee, and answer thou me.
Job 38:3
"Amino acids, the individual building blocks that comprise proteins, have two possible orientations in space: dextrorotatory (D) and levorotatory (L). D and L can also be designated as right-handed (D) and left-handed (L). Just like your right and left hands are mirror images of one another, amino acids can also have configurations in space that are mirror images.In the hypothetical primordial soup from which life arose, D- and L-amino acids would likely have
been present in nearly equal amounts (racemic mixture) So, why would living things that arose by purely natural means preferentially have used L-amino acids in their proteins when both L and D were equally available?" AIG
Just Asking....